Finding the Fourth Proportional to 144,709.93, 199,712.01 and 84,286.09
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Solution
The fourth proportional to 144,709.93, 199,712.01 and 84,286.09 is: 116,321.97
Step by Step Solution
- Step 1: Write the proportion equation
144,709.93 : 199,712.01 = 84,286.09 : x - Step 2: Convert to fraction form
144,709.93/199,712.01 = 84,286.09/x - Step 3: Cross multiply
144,709.93x = 199,712.01 × 84,286.09 - Step 4: Simplify right side
144,709.93x = 16,832,944,448.94 - Step 5: Solve for x
x = 16,832,944,448.94/144,709.93 - Step 6: Final answer
x = 116,321.97
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.